/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package bussiness;

import Database.UserData;
import Entity.User;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author cuong_000
 */
@WebServlet(name = "Login", urlPatterns = {"/Login"})
public class Login extends HttpServlet {

    public static User UserStatic;
    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String userName = request.getParameter("email");
        String passWord = request.getParameter("password");

        try {

            User user = UserData.authenticateUser(userName, passWord);

            if (user != null) {
                HttpSession session = request.getSession();
                session.setAttribute("user", user);
                UserStatic = user;
                if (request.getParameter("returnUrl") != null) {
                    response.sendRedirect(request.getParameter("returnUrl"));
                } else {
                    String role = UserData.getRole(userName);
                    if ("admin".equals(role)) {
                        response.sendRedirect("/SocialNetwork/new.jsp");
                    } else if ("user".equals(role)) {
                        response.sendRedirect("/SocialNetwork/index.jsp");
                    }
                }
            } else {
                response.sendRedirect("/SocialNetwork/login.jsp?msg=wrong%20email%20or%20password");
            }
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SQLException ex) {
            Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
